diff --git a/src/msw/utils.cpp b/src/msw/utils.cpp
index eab054013a..1a4e8137d6 100644
--- a/src/msw/utils.cpp
+++ b/src/msw/utils.cpp
@@ -1265,7 +1265,10 @@ wxOperatingSystemId wxGetOsVersion(int *verMaj, int *verMin)
 
 bool wxCheckOsVersion(int majorVsn, int minorVsn)
 {
-    OSVERSIONINFOEX osvi = { sizeof(osvi), 0, 0, 0, 0, { 0 }, 0, 0 };
+    OSVERSIONINFOEX osvi;
+    wxZeroMemory(osvi);
+    osvi.dwOSVersionInfoSize = sizeof(osvi);
+
     DWORDLONG const dwlConditionMask =
         ::VerSetConditionMask(
         ::VerSetConditionMask(